was starting to
Maldición, recién empezaba a calentar los motores.
Damn, I was just starting to warm up the engines.
— Akira (1988)
O sintió lástima por mí y empezaba a sentir lo mismo por ti.
Or he felt sorry for me and was starting to feel the same for you.
— Psicosis (1960)
It was starting to snow.
Tom empezaba a tener hambre.
Tom was starting to get hungry.
Terminó justo cuando empezaba a llover y no se mojó ni una gota al salir.
It ended just as it started to rain, and he didn't get a single drop wet when he came out.